Improvement in hot-air furnaces



1. s. 'VAN BUREN.

Hot-Air Furnace.

No. 101,683. Patented April 5, 1870.

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Letters Patent No. 101,683, dated April 5, 1870.

IMPROVEMENT IN HOT-AIR FURNACES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern Be it known that- I, J AFEW S. VAN BUREN, ofGi-een Island, in the county of Albany and State of New York, have invented a new and valuable Improvement in Hot-Air Furnaces and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings making a part of this specification, and to the letters and figures of reference marked thereon.

Figural, of the drawings, is a side view of my invention.-

Figure 2 is a central vertical longitudinal section of the same.

Figure 3 is a perspective view of the feeder.

Figure 4 represents a top view of the distributingplate in thehot-air chambers.

My invention relates to heaters, and consists in the eanstruction and novel arrangement of devices designed to constitute an improved hot-air furnace, which shall be safe, although resting upon a wooden floor, shall consume the gases generated near the feeder or fuelopening, and shall otherwise prevent them from issuing thereout at any time.

The letter A of the drawings designates a shallow metal pan designed to hold an inch or so of water, and thus to serve as an eflieient non-conductor between the furnace and the floor.

B represents the feeder or fuel-opening, provided with a flue or flues, c, in its floor or base, whereby oxygen is supplied through the perforations in the end,

for the consumption of the gases immediately about the opening.

- In order to prevent the escape of these gases when the door of the furnace is open, for the introduction of fuel or other purpose, the pendent gate d is arranged across the throat of the feeder.

E designates the hot-air chamber. It is in. the form of a hollow frustum of a cone, inverted within the upper portion of the furnace, and provided with an upright cone in thecenter.

The cold air is admitted by the flues e 6 fl 0lll the rear of the furnace, and is kept in contact with the heated walls of the inverted frustnm and central cone bymeans of the circular distributing-plate G within the hot-air chamber.

An opening is made in the front portion of the plate G to allow the heated air to escape from the lower portion of the hotair chamber E.

messes.

J. VAN BUREN.

Witnesses:

FRANK S. BAKER, J 01m MILLER. 

